In situ bonding of carbon fibers and nanotubes to polymer matrices
US11059945B2 · kind B2 · utility
5Cited by
11References
21Claims
0Family size
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Key dates
| Filing date | Jul 21, 2017 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Jul 21, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for forming a carbon fiber-reinforced polymer matrix composite by distributing carbon fibers or nanotubes into a molten polymer phase comprising one or more molten polymers; and applying a succession of shear strain events to the molten polymer phase so that the molten polymer phase breaks the carbon fibers successively with each event, producing reactive edges on the broken carbon fibers that react with and cross-link the one or more polymers. The composite shows improvements in mechanical properties, such as stiffness, strength and impact energy absorption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.